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Neptune By Ayreck Kellam and Nick McGraw

Describe how the planet got its name:

It was named after the Roman god of the sea.

Who discovered your planet?When?How?Where?:

Johann Galle on Sept. 23 1846 by Le Verriers prediction that there was a Planet beyond Uranus, in Cornwall UK.

Distances:

Order from the sun:

It's the Eighth planet from the sun.

Distance from the sun:

4,546,000,000 km

Distance from the Earth:

4.4 billion km

Planet Measurements:

Mass:1.0243*10 25kg

Volume:10^10 km^3

Orbit and Rotation:

Number of days to orbit around the sun:

61090 earth days

Perihelion: 4,459,630,000

Equatorial Circumference:

96683 miles

Mean Density:

1.638g cm^3 That means that in every cm cube it weights 1.638 grams.

Gravity:

1.14 times the gravity on earth

Aphelion:

4,553,946,490.199 km

Length of one day:

17 hours

Planet Appearance:

Neptune has a blue outer appearence. It is very cold. If you tried to walk on it you wold fall straight through. It is soft like water.

Rings:

It has five Rings:Galle,Le Verrier,Lassell,Arago,and Adams. These Rings were name after astronomers.

Satellites:

Naiad,Thalassa,Pespina,Galatea, Larissa,Proteus,triton,Nereid,Halimede,Sao,Laomedeia,Psamathe,Neso

Core composition:

80% helium 19%methane 1.5% other gases

Surface Compositions:

gas

Major gases:

Heliamand hydroren

Minor Gases:

Carbon dioxide,ozone and argin

Wind speeds:

Can Reach 2000kph

Temperature ranges:

-223 degrees celcius -220 degrees celcius

Weather:

High winds

Water:

There no liquid water on Neptune but there is a very small amounts of water ice present in the atmosphere.

Exploration:

Only voyager2 has vist Neptune.

Habitability:

If you tried to walk on the surface of Neptune,you'd sink right in.

Future human travel:

The astroid belt. There no solution

Terraforming:

A surface, oxygen, water, no helium

Cool Facts:

How much would you weigh on your planet?
If you weighed 100Ibs. on Earth you would weigh 123 pounds on Neptune

List 3 neat facts about your planet:

1.Neptune has no solid surface

2.A day on Neptune is 16 Earth hours

3.A year on Neptune is equal to 164.83 earth years